android实现ListView中添加RaidoButton单选

[align=center]android实现ListView中添加RaidoButton单选[/align]
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.TextView;

public class RecoverListAdapter extends BaseAdapter {

private LayoutInflater inflater;

int[] backup_record_item_image;

String[] backup_record_item_time;

String[] backup_record_item_to;

Activity activity;

private int temp = -1;

public RecoverListAdapter(Activity context, int[] backup_record_item_image,
String[] backup_record_item_time, String[] backup_record_item_to) {
this.inflater = LayoutInflater.from(context);
this.backup_record_item_image = backup_record_item_image;
this.backup_record_item_time = backup_record_item_time;
this.backup_record_item_to = backup_record_item_to;
this.activity = context;
}

@Override
public int getCount() {
return backup_record_item_time.length;
}

@Override
public Object getItem(int position) {
return position;
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = this.inflater.inflate(R.layout.general_recover_list_item, null);
holder.iv = (ImageView) convertView.findViewById(R.id.backup_record_item_image);
holder.tv_time = (TextView) convertView.findViewById(R.id.backup_record_item_time);
holder.tv_to = (TextView) convertView.findViewById(R.id.backup_record_item_to);
holder.radioButton = (RadioButton) convertView
.findViewById(R.id.backup_record_item_btn);
holder.radioButton.setChecked(false);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}

holder.iv.setImageResource(backup_record_item_image[position]);
holder.tv_time.setText(backup_record_item_time[position]);
holder.tv_to.setText(backup_record_item_to[position]);

//黑体部分为实现单选功能部分

holder.radioButton.setId(position);
holder.radioButton.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

if (isChecked) {
if (temp != -1) {
RadioButton tempButton = (RadioButton) activity.findViewById(temp);
if (tempButton != null) {
tempButton.setChecked(false);
}
}
temp = buttonView.getId();
}
}
});

if (position == temp) {
holder.radioButton.setChecked(true);
} else {
holder.radioButton.setChecked(false);
}
return convertView;
}

private class ViewHolder {
ImageView iv;

TextView tv_time;

TextView tv_to;

RadioButton radioButton;

}
}

general_recover_list_item.xml

< ?xml version="1.0" encoding="utf-8"?>

< LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="wrap_content"

android:layout_height="fill_parent">

< RelativeLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:paddingLeft="5dip"

android:paddingRight="5dip"

android:id="@+id/backup_record_item">

< ImageView

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:src="@drawable/icon"

android:layout_alignParentLeft="true"

android:id="@+id/backup_record_item_image"/>

< LinearLayout

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:orientation="vertical"

android:layout_toRightOf="@+id/backup_record_item_image"

android:id="@+id/backup_record_item_txt">

< TextView

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:text="时间"

android:layout_alignTop="@+id/imageView1"

android:layout_alignBottom="@+id/imageView1"

android:id="@+id/backup_record_item_time"/>

< TextView

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:text="备份联系人 到 "

android:layout_toRightOf="@+id/imageView1"

android:layout_alignTop="@+id/imageView1"/>

< TextView

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:text="手机/存储卡"

android:layout_toRightOf="@+id/imageView1"

android:layout_alignTop="@+id/imageView1"

android:id="@+id/backup_record_item_to" />

< /LinearLayout>

< RadioButton

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:layout_alignParentRight="true"

android:id="@+id/backup_record_item_btn" />

< CheckBox

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:visibility="gone"

android:text=""

android:id="@+id/backup_record_item_check" />

< /RelativeLayout>

< /LinearLayout>

main.xml

<LinearLayout

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical"

android:id="@+id/recover_items">

<ListView

android:id="@+id/recover_list"

android:cacheColorHint="#00000000"

android:layout_height="match_parent"

android:layout_width="fill_parent"/>

<View

android:id="@+id/recover_footer"

android:layout_width="fill_parent"

android:layout_height="40dip" />

</LinearLayout>